Mold Remediation San Marcos
Looking for trusted mold remediation in San Marcos, CA? At A/S General Contracting, we respond 24/7 to mold and water damage emergencies, helping local homeowners from Discovery Hills to Twin Oaks Valley. We’re licensed, certified, and highly rated for fast service and insurance claim support. If you’re worried about mold, call us today! We’ll handle it completely and transparently
A/S General Contracting Reviews
(⭐113+) Google & Yelp Reviews
EXCELLENT rating
Based on 50 reviewsTrustindex verifies that the original source of the review is Google. Sam and Ali were absolutely fantastic to work with. From the very beginning, they were professional, thorough, and incredibly communicative. They came out multiple times to assess the situation and provided a detailed, transparent quote that clearly outlined the scope of work—no hidden fees, no surprises. What really stood out was their honesty and the time they took to explain everything. The level of detail they provided gave us full confidence in their knowledge and capabilities. They were easy to talk to, responsive, and clearly dedicated to helping their clients understand every step of the process. If you're looking for a company that is reliable, transparent, and truly knows their stuff choose A/S general contracting. I 10/10 recommend them. Charlene Krietzberg2025-05-30Trustindex verifies that the original source of the review is Google. The entire crew at A/S General Contracting were great! They kept me informed every step of the way. They were professional and did a great job on my restroom restoration. Magda helped me through the entire insurance process and I am so appreciative. I definitely recommend their services. Rebecca Gomez2025-05-24Trustindex verifies that the original source of the review is Google. A/S general contractor was recommended by a friend and so glad I went with them. They were able to come in and remodel our house after a flood and it far exceeded my expectations. They turned a stressful situation to easy and stress free for us. Special shoutout to Sam, for keeping things honest and straight forward. I knew what I was getting from the get go and if I had any issues he was able to correct them within the hour. Sam is detailed oriented and you can he shows that he cares about the customers by his actions. Chad Whitehouse2025-05-07Trustindex verifies that the original source of the review is Google. Two years after the “shoddy” work they performed we are having to completely replace the flooring. They shot pin nails into laminate flooring but that isn’t the worst part. The patchwork they used to lay a sub floor was crap. They know what they did. They all like to agree and blame the homeowner for whatever goes wrong. One tone even suggesting they because we live in a “trailer house,” the floor would never be perfect. Well now we see clearly what kind of a pieced together project they did, we now have someone who is fixing this fiasco! Don’t use them Danette O'Quin2025-04-22Trustindex verifies that the original source of the review is Google. AS General Contacting is a great company. They repaired the water damage to my porch in a timely, professional manner. I highly recommend them to anyone who needs any type of repair! Deborah J. Davis2025-04-17Trustindex verifies that the original source of the review is Google. Any leak damage will take time and patience. Ali, Greg and Abel were great. Good communication! Good follow through! Scheduling was clearly communicated. Every project takes time, but these guys took care of the little details. They also helped me get the most from my coverage. This is my 3rd time working with A/S Contracting. I would recommend them to anyone. Eric Hughes2025-04-11Trustindex verifies that the original source of the review is Google. Great service fair prices. Sam and Danny were great communicators and got the job done efficiently! Maria Tsagalakis2025-04-09Trustindex verifies that the original source of the review is Google. Professional, patient, first class customer service, on time execution and overall great experience working with this company. Highly recommend! Olivia Bue2025-03-21Trustindex verifies that the original source of the review is Google. We had a major water leak that required us to file a claim through our insurance company, and our plumber referred us to A/S General. From the very beginning, Greg and Sam were incredibly helpful, guiding us through the entire process and helping expedite everything with our insurance company. Greg, Sam, and their entire team were professional, thorough, and communicative every step of the way. The construction crew consistently showed up on time, worked efficiently, and always left the work area clean at the end of each day. Thanks to their attention to detail and quality craftsmanship, our home is now in even better condition than before the water leak. We highly recommend A/S General to anyone in need of home restoration or construction services. Thank you to the entire team for taking such great care of our home! Mark Anthony Yraola2025-03-05Trustindex verifies that the original source of the review is Google. I had such a great experience working with Ali and his team. I own two salons and over the years his team has helped and guided me into the many upgrades and changes I've done thru-out the spaces. I like to stay current and hip, whether thats rearranging furniture, window treatments, fresh paint, crown mold,etc ...His team has been there to help me manage my spaces. Hard to find good communication and customer service today, your in good hands with this company Anne James2025-03-03
EXCELLENT rating
Based on 63 reviewsVerified A/S did a magnificent job from the beginning with Sam starting off helping me understand the process from the estimate to the time to complete the job and personally working with my insurance company to agree on a final settlement cost.Sam was able to take 250.00 off with Ali' the owners approval just like he said he would request it for us.:))Magdelena ,Abel,and along with Jose,Jonathan,and Joel were the men that came and completed the job in just 4 days.There work done was very professional and they were extremely helpful with me understanding the entire process.I thank my heavenly Father that Sam came to give me an estimate to fix what was needed in our home.Thank you A/S General Contractors!!! Clay R.December 17, 2024Verified I highly recommend A/S General Contracting and will most definitely be requesting their services again. I had major water damage in my house and the repair and replacement done was outstanding. The pricing was reasonable and the worked with me in every aspect of the job. Sam Abraham was very attentive, helpful, handled everything quickly and professionally. Customer service was astonishing and they worked very quickly to get me my house back to 150%. I am beyond pleased work they did. Well made, durable and worth every penny. The service, product and overall experience was outstanding. Roshaun B.October 5, 2024Verified I just want to start of by saying that this company went an above and beyond for us to get the scope writing and administrative negotiations with our insurance.I feel we received the most money so our insurance would take care of the flood we had at our home. Andy R.August 23, 2024Verified Requested to do the job asap. Told Sam Abraham we have house guests coming in at the middle of the week. He sent a crew to see what needs to be done. By Monday, they started fixing the damage and late afternoon, the same day, the job was done. Sam Abraham didn't promise but he produced the result. Ben L Benjamin L.June 26, 2024Verified Had some water damage in my shower and closet due to a burst pipe leak. A/S General Contracting came in and worked with my insurance to get my shower back to peak shape. Appreciate the professionalism and communication from Sam every step of the way. When I had a question he was easily accessible. Will definitely recommend to family and friends. Special thanks to Hugo as well for the good work. Eric M.June 10, 2024Verified The team has been on time,quick, understanding & professional. I can say a lot of people are not like that now and days. Sam and Travis were amazing at what they do. Need more good people like them. From somebody from the military nothing makes me happier than someone that is on time and staying true to their word. Continue the good work you do gentlemen. Angel E.June 1, 2024Verified Sam and A/S General were great to work with. Sam was very helpful in walking us through the insurance process for our water damage and was even able to get us more money then our other contractor. Sam was always available no matter how many questions I had. I would definitely recommend this company for any restoration project and Sam is by far one of the best individuals I have had to work with. Steve R.May 24, 2024
Why Does Mold Happen So Often in San Marcos?
San Marcos is known for its mild climate, but with that comes periods of high humidity, sudden rainfall, and older homes that aren’t always equipped to handle moisture buildup. We frequently find mold in attics, around leaking windows, under bathroom flooring, and behind drywall, especially in neighborhoods like San Elijo Hills, Richmar, and Lake San Marcos. Many homes here have aging pipes or unsealed crawl spaces that let moisture linger, feeding mold colonies that quickly spread out of view.


We Proudly Serve These San Marcos Areas
A/S General Contracting serves homes and businesses throughout San Marcos, including:
We’ve also done free mold inspections and mold remediation repair for homes and businesses around trending local landmarks in the area like California State University San Marcos and Karl Strauss San Marcos Outpost.
Emergency Mold Help in San Marcos – 24/7 Response
If you’re dealing with mold after a plumbing leak, heavy rain, or mysterious smell, don’t wait. Our local technicians are working across San Marcos every week and can often inspect your home the same day.
Call A/S General Contracting now for urgent service. We’re available 24/7.
What to Know Before Hiring for Mold Remediation in San Marcos
When mold appears in your San Marcos property, it brings immediate concern, health questions, and uncertainty about finding trustworthy professionals. Is this a serious health hazard? Will your insurance cover remediation costs? What should you budget for this service? And most importantly — who has the expertise to solve the problem permanently?
You should know that many San Marcos residents face similar challenges.
At A/S General Contracting, we’ve helped countless San Marcos property owners navigate complete mold remediation — from emergency assessment through final restoration. This comprehensive guide covers actual costs, common challenges, warning signs to avoid, and the essential qualities of reliable remediation professionals.
After reading, you’ll have the knowledge to identify quality service, ask informed questions, and proceed with confidence — whether you choose our team or another qualified provider.
What to Expect Before Removal Starts
A thorough mold inspection includes:
- Comprehensive visual examination
- Detailed moisture mapping and assessment
- Advanced thermal imaging technology
- Professional air and surface sampling
- Laboratory analysis with detailed reporting
- Customized remediation protocol with clear scope of work
We can connect you with trusted independent mold inspection specialists serving San Marcos
How Much Does Mold Remediation Cost in San Marcos?
Mold remediation in San Marcos generally ranges from $2,500 to over $15,000, depending on the extent and type of damage. Here’s a rough breakdown:
Sample Price Ranges
- Bathroom surface mold: $1,000 – $2,500
- Wall cavity or subfloor mold: $3,000 – $5,500
- Attic or crawl space remediation: $2,000 – $4,000
- Full-home mold removal: $7,000 – $15,000+
Homes in older parts of San Marcos or areas with elevated water tables like Lake San Marcos, often experience hidden mold due to plumbing leaks or condensation. We offer:
Factors That Influence Pricing in San Marcos:
- Full inspection and moisture detection
- Containment, HEPA filtration, and removal
- Post-remediation cleaning
- Optional clearance testing
- Insurance billing support from start to finish
We make sure you understand your scope of work and cost before we start.
What Affects the Cost of Mold Removal in San Marcos Homes and Businesses?
Several key factors determine pricing
A/S General Contracting provides clear, detailed estimates and optional independent clearance testing for complete transparency.
Scope and severity of mold contamination
Accessibility of affected areas (e.g., crawl spaces, HVAC systems)
Types of affected materials (drywall, wood framing, insulation)
Necessary containment procedures and labor requirements
Professional testing and verification costs
Required restoration and reconstruction work

DIY Mold Removal vs. Professional Mold Remediation in San Marcos
When DIY Might Work:
- Small surface mold (under 10 sq. ft.)
- Non-porous surfaces like bathroom tile
- Single moisture event that's been fully resolved
When To Hire a Pro
- Recurring or persistent mold problems
- Musty odors without visible growth
- Mold affecting drywall, structural elements, or HVAC systems
- Extensive contamination across multiple areas
- Health concerns among household members
Professional remediation in San Marcos includes proper containment, HEPA air filtration, antimicrobial treatment, and comprehensive moisture control.
What to Look for in a San Marcos Mold Remediation Company
Choose a Company That Offers:
- IICRC certified technicians
- Third-party lab testing (no in-house bias)
- Full containment & HEPA filtration
- Transparent pricing and scope of work
- Insurance documentation and claim support
- Warranties or satisfaction guarantees
A/S General Contracting provides all of the above with clear communication and no scare tactics.
Why A/S General Contracting?
- Fully certified, licensed, and insured professionals
- San Marcos area specialists with local expertise
- Transparent pricing without scare tactics
- Comprehensive insurance coordination
- Complimentary inspections and straightforward recommendations
- We address root causes and help San Marcos residents move forward with confidence.
What’s Included in Our Mold Remediation Process?
When you choose A/S General Contracting, you get:
- Thermal imaging and moisture mapping
- Optional third-party mold testing
- Full containment and negative air pressure
- HEPA vacuuming and filtration
- Safe mold removal and disposal
- Antimicrobial treatment
- Structural drying and repairs
- Optional third-party clearance testing
- Insurance claim coordination
Common Problems with Mold Companies in San Marcos
Problem 1
No Repairs After Removal
Some companies only handle demo. We handle both remediation and reconstruction — so you’re not left hiring a second contractor
Problem 2
In-house testing
This is a conflict of interest. We always refer independent, third-party testers to ensure unbiased results.
Problem 3
Over-removal or under-removal:
Low-cost contractors may remove too little (leaving spores) or too much (costly damage). We perform targeted, science-based remediation.
Problem 4
Unqualified Technicians
While not state-required, IICRC certification is the standard for safe mold removal. We exceed industry training and carry full insurance.
Mold Testing in San Marcos – When to Consider It
We recommend testing if:
- You smell musty odors but see no mold
- Someone in the household has health symptoms
- You’re buying/selling a property in San Marcos
- You’ve had prior water damage
- Post-remediation clearance checks
Types of Testing We Support:
Air Sampling
Detects airborne mold spores
Surface Testing
Identifies mold species
ERMI/HERTSMI
Advanced DNA based toxic mold analysis
Testing Costs: $600–$800
Results: 2–5 business days
We’ll guide you through the process and connect you with trusted local professionals.
A/S General Contracting – San Marcos Contact Info
A/S General Contracting
Serving: San Marcos & North San Diego County
Phone: +1 (858) 567-0146
Just minutes from Twin Oaks Valley — call now for a free inspection or 24/7 emergency response.

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Mold Remediation FAQs – San Marcos, CA
Q1: How fast can mold form in San Marcos homes?
In humid weather or with trapped moisture, mold can form in as little as 24–48 hours. We see this often after storms or pipe leaks.
Q2: Will insurance pay for mold removal in San Marcos?
If the mold came from a covered cause, like a burst pipe or roof leak, your policy may cover it. We work directly with your adjuster.
Q3: Where is mold most common in San Marcos homes?
Attics, under sinks, inside wall cavities, and crawl spaces especially in older homes near Richmar or Lake San Marcos.
Q4: Can I stay in my home during mold removal?
Yes, in most cases. We use containment barriers and air filtration to safely isolate the work area.
Q5: Do I need testing before or after mold remediation?
Not always. But in more serious cases, we recommend third-party mold testing before and after remediation for peace of mind.
Schedule Your Free Mold Inspection or Estimate in San Marcos
We offer a comprehensive, no-cost mold inspection or estimate conducted by a qualified expert—not a commission-based salesperson—ensuring unbiased and accurate assessments. Our team will provide a detailed remediation plan with clear, transparent recommendations tailored to your specific needs. Additionally, we offer professional assistance with your insurance claim, helping you navigate the process smoothly and efficiently.